kg4ysn wrote on Wednesday, September 17, 2008:
Hi Richard,
Thanks for the posting. There definitely wasn’t any overflowing of stacks; I used an LED-style example to do debugging to determine if this was the case.
After comparing against the demo code, I found that I had missed a tiny #pragma config declaration. Once I corrected that, the timers seemed to fire off correctly, and context switching worked as expected. So chalk this one up to user error. 
Thanks for taking the time to look into it!
Chris